Interest in synthetic routes to β-amino acids can be traced to the presence of these building blocks in a variety of biologicallyinteresting natural products, 1 and to the recent revelation that derived peptides show well-defined secondary structures. 2 While several methods for the construction of enantiomerically enriched β-amino acid derivatives have been developed utilizing either chiral substrates or chiral auxiliaries, 1a, 3 the enantioselective ...
